This asset provides a utility node group for configuring physically accurate metal materials using the Metallic BSDF shader. It includes pre-calculated Index of Refraction (IOR) and extinction coefficient values sourced from refractiveindex.info for the RGB channels. A built-in menu switch allows users to instantly apply properties for eleven common metals, including aluminum, brass, copper, gold, iron, lead, mercury, platinum, silver, titanium, and stainless steel.